NHTSA Complaint #11713573 — 2023 CHEVROLET BOLT EUV

Water intrusion occurred inside the rear taillight assembly, resulting in visible moisture/condensation within the housing and subsequent taillight malfunction/failure. The affected taillight performs critical rear lighting functions, including brake and signaling illumination. The presence of water inside the sealed taillight assembly indicates a failure of the lens or housing seal. Over time, moisture intrusion caused degradation and failure of the lighting function. Loss or impairment of rear lighting reduces the vehicle’s visibility to other drivers, particularly at night or during adverse weather conditions, creating a safety risk related to rear-end collisions and improper signaling. The condition developed during normal vehicle use and exposure to rain and environmental moisture. No collision, impact, or external damage occurred prior to the failure. No dashboard warning messages or alerts were observed prior to discovering the issue. The vehicle was inspected by an authorized dealership, which confirmed the taillight failure. The dealership stated the light source is not serviceable and that the entire taillight assembly must be replaced. The manufacturer acknowledged the issue but stated the vehicle was outside the warranty period and offered only a partial goodwill assistance of approximately 20%, leaving an out-of-pocket repair cost exceeding $800. Multiple consumer reports and online owner discussions document similar instances of water intrusion and taillight failure on Chevrolet Bolt vehicles, suggesting a potential pattern related to taillight design or sealing rather than isolated damage or maintenance-related failure. The affected taillight assembly remains available for inspection upon request.